From the time of human history, majority of the human settlements were along the coastal and river sides due to the available of water supplies.1 Globally, Groundwater is estimated to give about 50% present drinking water supplies. Although saltwater intrusion along the coastal region affecting a serious problem for freshwater aquifer.2 The occurrence of saline water intrusion is extensive and represent a special category of ground water pollution (Atkinson et al.,1986). Based on the seasonal geochemical and resistivity variations are useful for determine groundwater quality. 3 In coastal aquifers, Excessive pumping of groundwater and other human activities that reduce groundwater level and fresh water flow (Reilly and Goodman 1987).4 There are many planning’s and management of coastal aquifer is based on understanding of saline intrusion into the coastal aquifer. I...
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... of Kasaragod district were selected ( Fig.1). Sample locations were fixed with the help of Global positioning system (GPS).7 Every year, the district receives an average of 3500mm rainfall. Annually 85.3% of the total rainfall based on south west monsoon from June to September (Soman; Krishnakumar, 1990; CGWB, 2013).
Totally forty five water samples were collected from shallow open wells in coastal region along the Kasaragod district, northern Kerala. Water samples were covered 87km along the coast during pre monsoon (April 2016) and monsoon period (July 2016). In situ measurements like pH, EC, TDS, Temperature, and salinity were measured in the field using multi parameter instrument (Hanna- HI 98195).Based on the titration method, ionic contents (Total hardness, Total Alkalinity, Mg2+, Ca2+) of water samples were determined in the laboratory( APHA….).
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